Hinge



(N Model.) P. PORG,

HINGE. No. 373,352. Patented Nov. 15, 1887.

'al' BA s UNITED STATES v PATENT rrrcE.

PETER FORG, OF KSOMERVILLE, MASSACHUSETTS.

HINGE..

SPECIFICATION forming part of Letters Patent No. 373,352, dated November15, 1887.

Application filed January 11, 1887.

ers, one half of said hinge being adapted to be secured to a stationaryor fixed partn of a mirror or other frame and the other to a movablepart or frame.

My improved hinge is composed of a single leaf secured to a hollow studadapted to be driven, preferably, into the mirror frame, the said studhaving longitudinal flanges or ears to hold it in place and prevent itrotating, the said leaf having its earmaintained in frictional contactwith the face of the hollow stud by a spring washer or disk.

Figure 1 is a top view of a hinge embodying my invention; Fig. 2, avertical section on line x,- and Fig. 3, a section of Fig. 2 on line xx', looking toward the left.

The leaf of my improved hinge is stamped out of sheet metal, and isstruck up to form an ear, a, substantially at a right angle to the footportion a', the latter having holes a2, by which the foot is secured inplace.

The ear a has an opening through which is inserted a rivet, b, `which isalso extended through a hollow stud, b', adapted to be driven into thewood or other material to which the hinge is to be secured, the saidstud being provided at its front end or head with a flange, b2, andhaving longitudinal ribs b3, which hold it in place and prevent it frombeing turned or rotated.

The ear a, which is herein shown concaved near its center, and whichbears directly against the front face of the flange b2, is maintained incontact with the said iiange by a spring washer or disk, d, herein showncon- Seriall'No. 224,013. (No model.)

caved on its inner face, which is kept pressed against the outer face ofthe said ear by the head d of the rivet b, the coneavity of thespring-washer beingL opposite to that of the BRI a..

The opening` in the spring washer or disk d and in the stud b', throughwhich the rivet is extended, is square or rectangular, or other thanround shape, so as to prevent the said disk from rotating independentlyof the hinge leaf, the washeralso assisting to prevent the said studfrom turning when the hinge-leaf is turned. I

The front edge of the stud b is substantiallysharp, as at 2, to assistthe entrance of said stud into the wood or other material into which itis driven,which in practice will preferably be the mirror-frame; but itmay be just the re verse.

The spring washer or disk d is of such strength and stiffness as toexert sufficient friction between the ear and flange bito maintain thehinge in the position into which it is or may be turned.

By making the spring'washer concaved and applying it to the ear a sothat its concavity will be opposite to that of the said ear, a

greater spring motion is obtained; but instead of having both the washerand ear concaved I may make the ear ilat or smooth, the washer beingeoncaved; or I may ina-ke the washer flat, the ear being concaved.

I claim- A friction-hinge comprising a single leaf having an earsubstantially at right angle to its feet, combined with a hollow stud,b', in

' contact with the inner face of the said ear, and

